No, of troy, that was not a defintion that I quoted; it was just an elaboration of my understanding of the difference between the words.

Reticulum is a common enough word in medicine and there is a difference between the reticula in the body and the orderly grid pattern of a graticule. Whilst both are networks and meshworks, the latter is technical and drawn in an orderly, calibrated fashion, to scale, whilst the former is more akin to an, er,..artistic tangle.